Full-automatic lamination stacking machine

Abstract

The utility model relates to the technical field of battery manufacturing, in particular to a full-automatic lamination machine, which comprises a workbench, the workbench is provided with a lamination device, and the lamination device is used for laminating to form a film-coated battery cell, or covering the front and back surfaces of the film-coated battery cell with single-sided coating positive and negative pole pieces to form a single-sided coating battery cell; the battery cell shaping equipment is used for selectively performing rubberizing, shaping and fixing on the film-coated battery cell and performing hot-pressing, shaping and fixing on the single-sided coated battery cell on the basis of production of the film-coated battery cell and the single-sided coated battery cell; the transferring device is used for transferring the laminated battery cell or the single-sided coated battery cell stacked by the laminating device to the battery cell shaping equipment; and the discharging mechanism is used for moving the battery cell out of the battery cell shaping equipment and placing the battery cell at a discharging position, and discharging and placing the battery cell in a preset mode. The automatic processing device has the advantages of completing the whole process of battery cell production and improving the yield of battery cell production while completing two different battery cell automatic processing technologies of a film-coated battery cell and a single-sided coated battery cell.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field more specifically, it relates to a full -automatic lamination machine. BACKGROUND

[0002] At present, the processing technology for lithium battery mainly includes: one, electrode lamination process; two, electrode winding process two kinds; Among them, compared with the winding process, the volume specific capacity of electrode lamination process is higher, and the discharge platform and volume specific capacity are higher than the winding process lithium ion battery, so the energy density is also relatively high, in addition, for the design of the size of lithium battery, electrode lamination process is more easily through changing the shape of the electrode sheet to adjust the shape of the battery, so electrode lamination process has market prospect.

[0003] Due to the lightweight of the electrode sheet in the lamination machine, the electrode sheet is often offset or even empty during grabbing and placing, in order to reduce the operation difficulty of the lamination machine, the lamination machine on the market usually operates separately the lamination process and the battery cell fixing and shaping process, thereby reducing the complexity of the operation of a single lamination machine, but the new problem that follows is that the transfer and placement of the battery cell in this independent operation are prone to cause the loose of the stacked battery cell, thereby greatly reducing the yield of the battery cell in the fixing and shaping process. SUMMARY

[0004] In view of the above technical problems of the prior art, the utility model aims at providing a full -automatic lamination machine, which has the advantages of completing the automatic processing of two different battery cells, i.e.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a full -automatic lamination machine, comprising a workbench, the workbench is provided with:

[0006] Lamination equipment is used to sequentially accumulate and stack the double-coated positive sheet, the diaphragm and the double-coated negative sheet to form a film-coated battery cell, or to cover the film-coated battery cell with single-coated positive and negative sheets to form a single-coated battery cell;

[0007] Battery cell shaping equipment selectively shapes and fixes the film-coated battery cell and hot-presses and shapes the single-coated battery cell based on the production of the film-coated battery cell and the single-coated battery cell;

[0008] Transfer device is used to transfer the film-coated battery cell or single-coated battery cell stacked by the lamination device to the battery cell shaping equipment;

[0009] The unloading mechanism is used to remove the battery cell from the battery cell shaping device and place it in the unloading position.

[0010] Preferably, the transfer device comprises a transfer support frame arranged on the workbench, a multi-axis mechanical shaft installed on the transfer support frame, a transfer support table at the end of the multi-axis mechanical shaft, and a transfer clamp jaw rotating on the transfer support table, wherein a rotating transfer driving element is arranged on the transfer support table to drive the transfer clamp jaw to rotate and change the direction, and the position of the transfer support table is adjusted based on the lifting and translation of the multi-axis mechanical shaft to complete the transfer of the battery cell.

[0011] Preferably, the unloading mechanism comprises a transfer assembly for removing the battery cell from the battery cell shaping device, and a grabbing assembly connected to the transfer assembly for grabbing the battery cell removed from the battery cell shaping device and placing it in the unloading position.

[0012] The workbench is provided with a battery cell storage rack at the unloading position, and the battery cell storage rack is driven to lift by engaging the motor installed gear with the rack, and gradually lowered by coordinating the battery cell storage rack when the stacked battery cell is gradually raised.

[0013] Preferably, the lamination device is arranged on the workbench in two groups, and the transfer device is arranged at the end of the two groups of lamination devices, and the battery cell shaping device and the unloading mechanism are arranged on one side of the transfer device in sequence away from the lamination device.

[0014] Preferably, the lamination device is arranged on the workbench in two groups, and the transfer device is arranged between the two groups of lamination devices, and the battery cell shaping device and the unloading mechanism are arranged on one side of the transfer device in sequence away from the lamination device.

[0015] Preferably, the transfer assembly comprises a unloading plugboard for clamping the battery cell, and a transfer linear module is arranged on the workbench to drive the unloading plugboard to move back and forth between the positioning mechanism and the grabbing assembly, thereby completing the transfer and delivery of the battery cell.

[0016] Preferably, the grabbing assembly comprises a grabbing linear module arranged on the workbench, a grabbing support arranged on the grabbing linear module, and a grabbing clamp jaw installed on the grabbing support, wherein the grabbing clamp jaw is driven to lift by the lifting cylinder, and then the grabbing clamp jaw and the battery cell at the unloading position are driven to unload by the grabbing linear module.

[0017] Preferably, the cell shaping device comprises a hot-press shaping device for hot-press shaping process operation of single-side coated cells, a rubberizing shaping device for rubberizing fixing shaping of film-coated cells, and a feeding structure for selectively operating and transferring different cells between the hot-press shaping device and the rubberizing shaping device, the hot-press shaping device, the rubberizing shaping device and the feeding structure are separately arranged on the workbench, and multifunctional selective operation of one of the hot-press shaping device or the rubberizing shaping device is realized based on the movement of the feeding structure.

[0018] Preferably, each set of the laminating device comprises a film providing mechanism for providing a separator, two feeding mechanisms, a laminating table located between the two feeding mechanisms, and a laminating mechanism for laminating the electrode sheets on the laminating table, and a stand of the laminating mechanism is fixedly connected to the workbench; the two feeding mechanisms are symmetrically arranged left and right, and each feeding mechanism comprises a taking and placing mechanism, two boxes and a transfer table, the transfer table is close to the laminating table, the taking and placing mechanism is used for grabbing the battery electrode sheets from the two boxes one by one and transferring and placing them on the transfer table, and the transfer table supplies the laminating mechanism with the battery electrode sheets placed thereon one by one after position correction.

[0019] Preferably, the laminating mechanism comprises a stand, a transverse sliding plate, a bracket provided with suction cups on the left and right sides, and a fourth driving member, the transverse sliding plate is slidably connected to the stand, the bracket is slidably connected to the transverse sliding plate, the stand is provided with a first limiting groove in the shape of a "∩", and a limiting shaft and a pushing mechanism are further included, one end of the limiting shaft is fixedly connected to the bracket and the other end is fittedly connected to the first limiting groove, the pushing mechanism is arranged on the stand and its pushing end is movably connected to the limiting shaft, the driving member is fixedly connected to the bracket and used for driving the pushing mechanism to push the limiting shaft and the bracket to reciprocally slide along the first limiting groove, and when the bracket moves to the left end and the right end of the first limiting groove, the right suction cup and the left suction cup are located at the same position.

[0020] In summary, the utility model has the beneficial effects:

[0021] 1. After the process production of sequentially and cumulatively stacking the positive electrode sheet with double-side coating, the separator and the negative electrode sheet with double-side coating to form a film-coated cell is completed by the laminating device, the film-coated cell is sent to the cell shaping device by the transferring device, the film-coated cell is rubberized and shaped by the cell shaping device, and finally the cell is removed from the cell shaping device by the discharging mechanism and placed on the discharging position, the discharging is performed in a preset manner, and the automatic production of the film-coated cell is completed.

[0022] 2, through the laminated equipment in the production of the film-covered battery on the basis of the film-covered battery positive and negative surface covering single-sided coating positive and negative sheet to form a single-sided coating battery process production, using the transfer device to send the single-sided coating battery to the battery shaping equipment, through the battery shaping equipment to the single-sided coating battery heat pressing shaping fixed, finally through the unloading mechanism to remove the battery from the battery shaping equipment and placed in the unloading position, through the preset way to unload and place, complete the automatic production of single-sided coating battery;

[0023] 3, according to the production requirements, on the same equipment, complete the film-covered battery and single-sided coating battery two different battery automatic processing technology at the same time, and then complete the whole process of battery production, improve the yield of battery production. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic diagram of embodiment one of the utility model;

[0025] Figure 2 is the front view schematic diagram of automatic laminated machine of embodiment one of the utility model;

[0026] Figure 3 is the three-dimensional structure schematic diagram of laminated mechanism of embodiment one of the utility model;

[0027] Figure 4 is the structure schematic diagram of pushing mechanism and part of stand of embodiment one of the utility model;

[0028] Figure 5 is the structure schematic diagram of battery shaping equipment of embodiment one of the utility model;

[0029] Figure 6 is the local structure schematic diagram of heat pressing shaping device of embodiment one of the utility model;

[0030] Figure 7 is the local structure schematic diagram of feeding structure of embodiment one of the utility model;

[0031] Figure 8 is the overall structure schematic diagram of the top view of embodiment two of the utility model.

[0032] Label: 1, stand; 10, limit shaft; 11, stand main body; 12, fixed plate; 13, limit plate; 14, guide rail; 111, first limit groove; 2, transverse sliding plate; 21, laminating device; 3, support; 31, suction cup; 32, longitudinal sliding plate; 33, connecting plate; 41, swing arm; 42, pushing block; 43, pushing shaft; 44, fourth driving part; 100, workbench; 200, film supply mechanism; 302, material box; 304, waste tray; 303, transfer table; 3011, driving motor; 3012, suction cup part; 3013, rotating arm; 400, laminating table; 5, cell plastic forming device; 51, hot pressing plastic forming device; 52, support frame; 53, support table; 54, hot pressing module; 55, second driving part; 56, heating layer; 57, heat transfer layer; 58, abutting layer; 6, rubberizing plastic forming device; 61, positioning mechanism; 611, rubberizing storage table; 612, extrusion fixing block; 613, third driving part; 614, rubberizing support frame; 62, rubberizing mechanism; 621, multi-axis driving module; 64, storage rack; 65, adhesive tape conveying assembly; 651, adhesive tape rack; 652, conveying roller; 653, rubberizing suction cup; 654, tensioning roller; 655, second limit groove; 66, adhesive tape cutting assembly; 7, feeding structure; 71, placement table; 72, feeding clamping jaw; 73, placement table linear module; 74, placement table sliding rail; 75, rotating table sliding rail; 76, rotating table linear module; 77, rotating table; 78, first driving part; 8, discharging mechanism; 81, discharging position; 82, moving assembly; 821, discharging plug-in plate; 822, moving linear module; 823, discharging motor; 83, grabbing assembly; 831, grabbing linear module; 832, grabbing support; 833, grabbing clamping jaw; 84, cell storage rack; 85, rack; 9, moving device; 91, moving support frame; 92, multi-axis mechanical shaft; 93, moving support table; 94, moving clamping jaw; 95, rotating moving driving part. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0034] It should be noted that when a component is referred to as "fixed to" or "provided on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0037] Embodiment one: a full-automatic lamination machine, referring to Figure 1 , comprising a workbench 100, wherein the workbench 100 is provided with:

[0038] Lamination device 21, for sequentially accumulating and stacking the double-coated positive plate, the diaphragm and the double-coated negative plate to form a film-covered battery cell, or covering the single-coated positive and negative plate on the front and back surfaces of the film-covered battery cell to form a single-coated battery cell;

[0039] Battery cell shaping device 5, based on the production of the film-covered battery cell and the single-coated battery cell, selectively gluing and shaping the film-covered battery cell, and heat pressing and shaping the single-coated battery cell;

[0040] Transfer device 9, for transferring the film-covered battery cell or single-coated battery cell stacked by the lamination device to the battery cell shaping device 5;

[0041] Discharging mechanism 8, for moving the battery cell from the battery cell shaping device 5 to the discharging position 81 and discharging by a preset method.

[0042] After the lamination device 21 completes the process of sequentially accumulating and stacking the double-coated positive plate, the diaphragm and the double-coated negative plate to form a film-covered battery cell, the transfer device 9 is used to send the film-covered battery cell to the battery cell shaping device 5, the battery cell shaping device 5 is used to glue and shape the film-covered battery cell, and finally the discharging mechanism 8 is used to move the battery cell from the battery cell shaping device 5 to the discharging position 81 and discharge by a preset method, thereby completing the automatic production of the film-covered battery cell;

[0043] Through the lamination equipment 21, on the basis of producing the film-covered battery cell, the single-side coated positive and negative electrode sheets are covered on the front and back surfaces of the film-covered battery cell to form a single-side coated battery cell. After the production process, the single-side coated battery cell is sent to the battery cell shaping equipment 5 by the transfer device 9. The single-side coated battery cell is heat-pressed and shaped by the battery cell shaping equipment 5. Finally, the battery cell is removed from the battery cell shaping equipment 5 by the discharging mechanism 8 and placed in the discharging position 81. The discharging is arranged in a preset manner, and the automatic production of the single-side coated battery cell is completed.

[0044] According to the production requirements, the automatic processing processes of two different battery cells, i.e. the film-covered battery cell and the single-side coated battery cell, are completed at the same time on the same equipment, thereby completing the whole process of battery cell production and improving the yield of battery cell production.

[0045] Before the battery cell is formed, the cross-lamination between the electrode sheet and the diaphragm is completed by the lamination equipment 21, which involves two different process options.

[0046] One is the production process of the film-covered battery cell, i.e. the double-side coated positive electrode sheet, the diaphragm and the double-side coated negative electrode sheet are sequentially stacked to form.

[0047] Two is the production process of the single-side coated battery cell, i.e. the single-side coated positive and negative electrode sheets are placed on the bottom layer, and then the double-side coated positive electrode sheet, the diaphragm and the double-side coated negative electrode sheet are stacked, and finally the single-side coated positive and negative electrode sheets are placed on the top layer.

[0048] Therefore, the two production processes are combined by the lamination equipment 21 to realize the production of two different battery cells.

[0049] Referring to Figure 1 , specifically, the lamination equipment 21 is provided with two groups on the workbench 100. The transfer device 9 is arranged at the ends of the two groups of lamination equipment 21. The battery cell shaping equipment 5 and the discharging mechanism 8 are arranged on one side of the transfer device 9 in sequence away from the lamination equipment 21.

[0050] The number of lamination equipment 21 is increased to improve the production capacity. The positions of the lamination equipment 21, the transfer device 9, the battery cell shaping equipment 5 and the discharging mechanism 8 are reasonably arranged to meet the production of two groups of lamination equipment 21 and facilitate the automatic production operation.

[0051] Referring to Figure 2Each of the lamination devices 21 comprises a diaphragm providing mechanism 200, two feeding mechanisms, a lamination table 400 located between the two feeding mechanisms, and a lamination mechanism for laminating the pole pieces on the lamination table 400, and the lamination mechanism is fixed on the workbench 100 through the stand 1.

[0052] The lamination mechanism comprises the stand 1, the lateral slide plate 2, and the bracket 3, and the bracket 3 is provided with the suction cups 31 on the left and right sides. The bracket 3 is provided with two parallel and left-right transverse guide rails 14, and the lateral slide plate 2 has two blocks and is respectively connected with the two guide rails 14 in sliding mode. The left and right sides of the two blocks of the lateral slide plate 2 are provided with sliding grooves, and the bracket 3 comprises the connecting plate 33 and the left and right longitudinal slide plates 32. The left and right longitudinal slide plates 32 are respectively connected with the sliding grooves on the left and right sides of the lateral slide plate 2 in sliding mode, and the connecting plate 33 is fixedly connected with the two longitudinal slide plates 32 at the two ends. The two suction cups 31 are respectively fixedly connected with the lower ends of the two longitudinal slide plates 32.

[0053] In the above structure, the lateral slide plate 2 can move left and right along the guide rail 14, and the longitudinal slide plate 32 can move up and down along the lateral slide plate 2, so that the whole can be moved arbitrarily within a limited range in the vertical plane. The stand 1 is provided with a first limiting groove 111 in the shape of “∩”, one end of a limiting shaft 10 is fixedly connected with the middle of the connecting plate 33, and the other end is matched and connected in the first limiting groove 111. Due to the limiting effect of the first limiting groove 111, the limiting shaft 10 can only reciprocate along the first limiting groove 111, so that the whole bracket 3 is also limited in the same action. When the bracket 3 moves to the left end and the right end of the first limiting groove 111, the right suction cup 31 and the left suction cup 31 are in the same position, so that the battery pole pieces on the left and right sides can be adsorbed and brought to the same position for lamination.

[0054] In order to drive the limiting shaft 10 to reciprocate along the first limiting groove 111 together with the bracket 3, a pushing mechanism is arranged and a fourth driving part 44 is used, as shown in the figure. The pushing mechanism is arranged on the stand 1, and the pushing end is movably connected with the limiting shaft 10. The driving part is fixedly connected with the bracket 3, so as to drive the pushing mechanism to push the limiting shaft 10 together with the bracket 3 to reciprocate along the first limiting groove 111. Figures 2-4

[0055] ​The pushing mechanism comprises a swing arm 41, a pushing block 42 and a pushing shaft 43. One end of the swing arm 41 is hinged to the support 3 and located in the middle of the first limiting groove 111. The other end of the swing arm 41 is provided with a strip-shaped groove along the swing radial direction. The other end of the limiting shaft 10 is inserted into the strip-shaped groove. The driving member is a reversible rotary driving member, such as a DD motor, an RV motor or the like. The middle part of the pushing block 42 is fixedly connected to the rotating shaft of the rotary driving member. One end of the pushing shaft 43 is fixedly connected to the middle part of the pushing block 42. The other end of the pushing shaft 43 is hinged to the swing arm 41. The pushing shaft 43 drives the swing arm 41 to swing left and right through the forward and reverse rotation of the rotary driving member. Compared with the direct connection of the rotating shaft of the rotary driving member to the swing arm 41 to drive the swing arm 41 to swing left and right, the embodiment is beneficial to reduce the filtering micro-vibration and make the overall swing more stable.

[0056] In an embodiment, as shown in Figure 3 The stand 1 comprises a stand 1 body, a fixed plate 12 and a limiting plate 13. The fixed plate 12 is fixedly connected to the stand 1 body. The limiting plate 13 is fixedly connected to the front surface of the fixed plate 12. The first limiting groove 111 is arranged on the limiting plate 13. The swing arm 41 is arranged on the front surface of the limiting plate 13. The fixed plate 12 and the limiting plate 13 are both provided with an arc-shaped groove for the pushing shaft 43 to pass through. The rotary driving member is fixedly connected to the back surface of the fixed plate 12. Since the first limiting groove 111 needs to bear the gravity of the entire support 3, the longitudinal slide plate 32 and other components supported by the limiting shaft 10, the first limiting groove 111 is prone to wear during use. The separate arrangement of the first limiting groove 111 on the limiting plate 13 facilitates the use of more wear-resistant materials to manufacture the limiting plate 13, thereby improving the durability. Meanwhile, the wear of the limiting plate 13 after long-term use is also convenient to replace.

[0057] When the support 3 moves to the left end and the right end of the first limiting groove 111, respectively, the right suction disc 31 and the left suction disc 31 are aligned with the stacking table 400. The film supply mechanism 200 is arranged on the support 3 and the film outlet is located between the two suction discs 31. In work, the support 3 of the laminating mechanism moves in a “∩” type. The two suction discs 31 can respectively grab and place the battery pole pieces of the left and right two feeding mechanisms on the stacking table 400. In cooperation with the film supply mechanism 200, the diaphragm can be covered on the battery pole pieces of the stacking table 400 during the reciprocating “∩” type movement. The whole performs a “Z” type film covering action.

[0058] In an embodiment, referring to Figure 2, two feeding mechanisms are arranged symmetrically left and right, the feeding mechanism includes a taking and placing mechanism, two material boxes 302 and a transfer table 303, the transfer table 303 is close to the stacking table 400, the taking and placing mechanism is used to grab the battery pole piece from the two material boxes 302 one by one and transfer and place on the transfer table 303, the transfer table 303 supplies the stacking mechanism with the battery pole piece placed thereon one by one after position correction, when the support 3 of the stacking structure moves to the left end of the first limiting groove 111, the left suction cup 31 can adsorb the battery pole piece placed on the left transfer table 303, when moving to the right end of the first limiting groove 111, the left suction cup 31 places the battery pole piece on the stacking table 400, at this time the right suction cup 31 adsorbs the battery pole piece placed on the right transfer table 303, when the support 3 moves to the left end of the first limiting groove 111 again, the right suction cup 31 places the battery pole piece on the stacking table 400, at this time the left suction cup 31 just adsorbs the battery pole piece, and so on.

[0059] In an embodiment, the feeding mechanism further includes a waste disc 304, the two material boxes 302, the transfer table 303 and the waste disc 304 are arranged uniformly around the taking and placing mechanism, and the two material boxes 302 are arranged oppositely, and the transfer table 303 and the waste disc 304 are arranged oppositely, the transfer table 303 further has an appearance defect screening function, if the battery pole piece with appearance defects is screened out, it is placed on the waste disc 304 by the taking and placing mechanism. The two material boxes 302 are arranged oppositely, one of the material boxes 302 is close to the front of the platform, which is convenient for placing commonly used battery pole pieces.

[0060] In addition, the taking and placing mechanism includes a rotating arm 3013, a suction cup 31 and a driving motor 3011, the rotating arm 3013 is fixedly connected with the rotating shaft of the driving motor 3011, the suction cup 31 is fixedly connected to the end of the rotating arm 3013, the rotating arm 3013 can move up and down and rotate, so that the suction cup 31 can rotate to the upper part of any component of the two material boxes 302, the transfer table 303 and the waste disc 304 with the rotating arm 3013. Since the material boxes 302, the transfer table 303 and the waste disc 304 are arranged uniformly around the taking and placing mechanism for work, the rotating arm 3013 can transfer the battery pole piece from the material box 302 to the transfer table 303 every 90°, which can shorten the angle stroke of the rotating arm 3013 and improve the work efficiency.

[0061] In addition, the four material boxes 302 of the two groups of feeding mechanisms can reverse different battery pole pieces as needed to complete the stacking work of the battery in different stacking modes.

[0062] The embodiment is to realize selective production of film-coated battery cells and single-sided coated battery cells. The four material boxes 302 can place double-sided coated battery positive plates, double-sided coated battery negative plates, and two kinds of single-sided coated battery plates with opposite coating directions. When single-sided coated battery cells are produced, the two kinds of single-sided coated battery plates with opposite coating directions are grabbed at the beginning and the end, and only the battery positive plates and the battery negative plates are grabbed in the middle. Finally, the coating directions of the outermost two battery plates are towards the inside. When film-coated battery cells are produced, only the grabbing of single-sided coated battery plates is abandoned.

[0063] After the cell lamination is completed, the cell is removed from the stacking table 400 by the transfer device 9.

[0064] Referring to Figure 1 , the transfer device 9 includes a transfer support frame 91 arranged on the workbench 100, a multi-axis mechanical shaft 92 installed on the transfer support frame 91, a transfer support table 93 located at the end of the multi-axis mechanical shaft 92, and a transfer gripper 94 rotating on the transfer support table 93. The transfer support table 93 is provided with a rotary transfer driving member 95 for driving the transfer gripper 94 to rotate and change the direction, and the position of the transfer support table 93 is adjusted based on the lifting and translation of the multi-axis mechanical shaft 92, so as to complete the transfer of the battery cell.

[0065] That is, by adjusting the position of the transfer support table 93 through the lifting and translation of the multi-axis mechanical shaft 92, the transfer gripper 94 is driven to move and rotate, thereby completing the transfer of the battery cell and realizing the automatic transfer process.

[0066] After the movement is completed, the battery cell needs to be subjected to a plastic process, which is performed by a battery cell plastic device.

[0067] Since the battery cell involved in the present application is divided into two types, one is a film-coated battery cell, and the outer layer of the film-coated battery cell is a diaphragm, which can only be fixed in the form of adhesive tape, and the other is a single-sided coated battery cell, the outermost layer of the single-sided coated battery cell is a single-sided coated electrode plate, which is relatively good in the form of hot pressing plasticity.

[0068] Therefore, the present application provides a multifunctional battery cell plastic device 5, referring to Figures 5-7 , the battery cell plastic device 5 includes a hot pressing plastic device 51 arranged on the workbench 100 for hot pressing plastic process operation of the battery cell, a glue fixing plastic device 6 for fixing and shaping the battery cell by adhesive tape, and a feeding structure 7 for selectively operating and transferring the battery cell between the hot pressing plastic device 51 and the glue fixing plastic device 6. The multifunctional selection operation of one of the hot pressing plastic device 51 or the glue fixing plastic device 6 is realized based on the movement of the feeding structure 7.

[0069] The embodiment is based on the setting of the hot pressing shaping device 51. The air in the diaphragm is discharged by hot pressing and shaping the battery cell, the pressure of extrusion is used to make the diaphragm and the electrode tightly adhere together, the internal resistance of the battery cell is reduced, and the battery cell is fixed and shaped by hot shaping.

[0070] Based on the setting of the glue sticking shaping device 6, the battery cell edge is glued, the battery cell is fixed and shaped by the film, and the processed battery cell is prevented from being naturally loose.

[0071] Based on the hot pressing treatment of the hot pressing shaping device 51 and the glue sticking treatment of the glue sticking shaping device 6, the fixed shaping of the battery cell is realized. The battery cell is transferred and selected between the hot pressing shaping device 51 and the glue sticking shaping device 6 by the feeding structure 7, so as to provide multifunctional selection conditions for the operation mode of the fixed shaping of the battery cell, and improve the application range of the lithium battery.

[0072] The feeding structure 7 involved in the embodiment includes a plurality of placement tables 71 for placing battery cells and a clamping jaw mechanism for clamping the battery cells on the placement tables 71. The hot pressing shaping device 51 is arranged above the placement tables 71. The hot pressing shaping device 51 and the glue sticking shaping device 6 are operated alternatively in the application.

[0073] If the hot pressing shaping device 51 is selected to hot press the battery cell, the feeding structure 7 moves the battery cell out of the placement table 71 after the hot pressing is completed, and the glue sticking shaping device 6 no longer glues the battery cell. If the hot pressing shaping device 51 is not selected to hot press the battery cell, the feeding structure 7 moves the battery cell to the glue sticking shaping device 6, and the glue sticking shaping device 6 glues the battery cell again.

[0074] The clamping mechanism includes a plurality of feeding clamping jaws 72 and a driving assembly for driving the feeding clamping jaws 72 to approach and move away from the hot pressing shaping device 51.

[0075] In order to conveniently clamp the battery cell, the feeding clamping jaws 72 are closed to clamp and take and place the battery cell, and the clamping jaws are moved by the driving assembly.

[0076] The driving assembly includes a rotating table 77 rotating on the workbench 100 and a first driving member 78 driving the rotating table 77 to rotate. Two groups of the feeding clamping jaws 72 are arranged on the rotating table 77. The rotating table 77 is driven by the first driving member 78 to select, so as to make the two groups of the feeding clamping jaws 72 alternately clamp the battery cell.

[0077] The two groups of delivery grippers 72 are arranged symmetrically to each other, and are used to realize the alternation between the delivery grippers 72. By the driving of the first driving member 78, the rotating table 77 is driven to rotate, so as to realize the rotation of the delivery grippers 72, and realize the movement of the battery cell gripped by one delivery gripper 72 from the placing table 71 to the rubber pasting and shaping device 6.

[0078] The two groups of placing tables 71 are arranged, which is equivalent to two battery cell conveying lines. The number of the conveying lines can be selected according to the actual situation. Since the two groups of placing tables 71 are arranged, in order to facilitate the grabbing of the delivery grippers 72, the placing table 71 sliding rails are arranged on the workbench 100 at the placing tables 71 for the sliding of the placing tables 71. Then, the placing table 71 linear module is driven to drive the two groups of placing tables 71 to rotate, so as to facilitate the grabbing of the battery cells on the two groups of placing tables 71 by the delivery grippers 72.

[0079] Meanwhile, the rotating table sliding rails 75 are arranged on the workbench 100 at the first driving member 78 for the sliding of the delivery structure 7. The rotating table linear module 76 is arranged on the rotating table sliding rails 75 to drive the gripper to move between the hot pressing and shaping device 51 and the rubber pasting and shaping device 6.

[0080] The specific structure of the hot pressing and shaping device 51 includes a support frame 52, a support table 53 arranged on the support frame 52, and a plurality of groups of hot pressing modules 54 arranged on the support table 53.

[0081] In order to save space, the hot pressing modules 54 are arranged opposite to the placing tables 71. The support table 53 is provided with a second driving member 55 for driving the hot pressing modules 54 to move close to and away from the placing tables 71. When the hot pressing and shaping process is selected, the hot pressing modules 54 can generate high temperature to hot press the battery cell.

[0082] The number of the hot pressing modules 54 corresponds to the number of the placing tables 71, which is convenient for the synchronous hot pressing of multiple production lines.

[0083] Specifically, the hot pressing module 54 includes a heating layer 56, a heat transfer layer 57 and an abutting layer 58 arranged in sequence from top to bottom. The heating layer 56 realizes the electrical connection, converts electricity into heat, and then conducts heat through the heat transfer layer 57. The abutting layer 58 precisely abuts and presses the battery cell circumferential edge, and precisely abuts and presses the remaining part of the battery cell.

[0084] For the structure of the rubber shaping device 6, the rubber shaping device 6 includes a positioning mechanism 61 for fixing the battery cell and a rubbering mechanism 62 for rubbering the battery cell on the positioning mechanism 61, and the rubbering mechanism 62 is provided with multiple groups around the positioning mechanism 61. By cooperating with the rotation of the positioning mechanism 61 to the battery cell, multi-angle rubbering and fixing shaping of the battery cell are realized.

[0085] If the battery cell is not selected for the hot pressing shaping device 51 to perform the hot pressing shaping process, it will enter the rubber shaping device 6 to perform the rubber shaping and fixing operation. First, the battery cell is moved to the positioning mechanism 61 for fixation, and then the rubbering mechanism 62 equipped on both sides of the positioning mechanism 61 is used to rubber and fix the battery cell around. After the two groups of rubbering mechanisms 62 complete the rubbering of the wide side of the battery cell at the same time, the rotation of the positioning mechanism 61 to the battery cell is cooperated to change the direction of the battery cell, and then the two groups of rubbering mechanisms 62 are used to complete the rubbering of the long side of the battery cell at the same time.

[0086] First, the positioning mechanism 61 includes a rubbering placement table 611, a pressing fixing block 612 opposite to the upper side of the rubbering placement table 611, and a third driving part 613 driving the pressing fixing block 612 to approach or move away from the rubbering placement table 611. The third driving part 613 is arranged on a rubbering support frame 614, and the rubbering support frame 614 is arranged on the workbench 100.

[0087] The third driving part 613 drives the pressing fixing block 612 to move, and then cooperates with the rubbering placement table 611 to press and fix the battery cell on the rubbering placement table 611. Based on this, since the rubbering placement support frame is arranged on the rubbering placement table 611, it is convenient for the clamping jaw to pick up the battery cell, and it provides a clearance condition for the rubbering of the rubbering mechanism 62.

[0088] Specifically, the rubbering mechanism 62 includes a multi-axis driving module 621 arranged on the workbench 100 to realize lifting, a placement frame 64 mounted on the multi-axis driving module 621, a rubber belt conveying assembly 65 mounted on the placement frame 64, and a rubber belt cutting assembly 66 located at the end of the rubber belt conveying assembly 65.

[0089] The rubber belt conveying assembly 65 conveys the rubber belt to the rubber belt cutting assembly 66, cooperates with the up-and-down movement of the multi-axis driving module 621 to make the rubber belt stick to the front and back of the battery cell, and cuts the rubber belt through the rubber belt cutting assembly 66.

[0090] The multi-axis driving module 621 is at least a driving module of a two-axis mechanical arm, which realizes lifting and forward and backward driving through the combination of multiple linear modules, and then drives the rubber belt conveying assembly 65 to reciprocate on the upper and lower sides of the battery cell.

[0091] The tape conveying assembly 65 comprises a tape rack 651 for placing a tape ring, a plurality of conveying rollers 652 for relaxing the tape, and a tape sticking suction cup 653 for fixing the adsorbed tape. Tensioning rollers 654 are arranged between adjacent conveying rollers 652, and the tensioning rollers 654 are driven to move by a same-specification cylinder, so as to avoid excessive tensioning or relaxation of the tape.

[0092] Meanwhile, an abutting roller is arranged on each of the conveying rollers 652, and the abutting roller is also pushed by a cylinder, so as to avoid curling of the side edges of the tape during conveying of the tape.

[0093] Second limiting grooves 655 are arranged on both sides of the tape sticking suction cup 653, so that the tape can be limited from displacement by the second limiting grooves 655 while the tape is adsorbed by the suction cup 31.

[0094] A tape cutting assembly 66 is arranged at the bottom of the tape sticking suction cup 653, and the tape cutting assembly 66 cuts the tape by sliding a cutter driven by a cylinder.

[0095] The combination of a plurality of linear modules is matched to realize lifting and forward and backward driving, so as to drive the tape conveying assembly 65 to reciprocate on the upper and lower sides of the battery cell, so as to realize sticking of the tape on the upper and lower sides of the battery cell.

[0096] Specifically, the workbench 100 is provided with a discharging mechanism 8 for stacking and placing the battery cell after completion of tape sticking or hot pressing on one side of the workbench 100. The workbench 100 is provided with a discharging position 81 on one side, and the battery cell is moved from the tape sticking placement table 611 to the discharging position 81 by the discharging mechanism 8.

[0097] Only one discharging position 81 is arranged in the embodiment, and the battery cell after completion of the tape sticking process or the hot pressing process is stacked and placed by the discharging mechanism 8.

[0098] The discharging mechanism 8 comprises a transfer assembly 82 for moving the battery cell out of the positioning mechanism 61, and a grabbing assembly 83 connected to the transfer assembly 82 for grabbing and placing the battery cell moved out of the positioning mechanism 61 on the discharging position 81.

[0099] The workbench 100 is provided with a battery cell placement rack 84 at the discharging position 81, and the battery cell placement rack 84 is driven to realize lifting by a motor installed gear and rack 85. When the stacked battery cell is gradually lifted, the battery cell placement rack 84 is gradually lowered.

[0100] The transfer assembly 82 comprises a discharging plug plate 821 for clamping the battery cell, and a transfer linear module 822 is arranged on the workbench 100 to drive the discharging plug plate 821 to reciprocate between the positioning mechanism 61 and the grabbing assembly 83, so as to complete transfer and conveying of the battery cell.

[0101] And the blanking plug-in board 821 is driven to rotate by a blanking motor 823 by a preset angle, facilitating the grabbing of the grabbing assembly 83.

[0102] The grabbing assembly 83 comprises a grabbing linear module 831 arranged on the workbench 100, a grabbing support 832 arranged on the grabbing linear module 831, and a grabbing gripper 833 mounted on the grabbing support 832.

[0103] Embodiment two: a full-automatic lamination machine, referring to Figure 8 The difference between the present embodiment and embodiment one is that two groups of lamination devices 21 are arranged on the workbench 100, the transfer device 9 is arranged between the two groups of lamination devices 21, and the cell shaping device 5 and the blanking mechanism 8 are arranged on one side of the transfer device 9 in sequence away from the lamination devices 21.

[0104] By spacing apart the two groups of lamination devices 21, the transfer device 9, the cell shaping device 5 and the blanking mechanism 8 are arranged between the two groups of lamination devices 21, thereby expanding the longitudinal length of the workbench 100 and shortening the transverse width of the workbench 100, effectively providing multiple application scenarios for the use environment.

[0105] The rest of the present embodiment is the same as embodiment one, and the features not explained in the present embodiment are explained in embodiment one, which will not be repeated here.

[0106] The above embodiments are only explanations of the present application, and are not limitations of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A fully automatic lamination machine characterized by: The workbench is provided with: The laminating device is used for sequentially and cumulatively stacking the double-sided coated positive electrode sheet, the diaphragm and the double-sided coated negative electrode sheet to form a film-covered battery cell, or covering the positive and negative electrode sheets with single-sided coating on the positive and negative surfaces of the film-covered battery cell to form a single-sided coated battery cell. The cell shaping device selectively fixes the film-covered battery cell by gluing and shaping, and fixes the single-sided coated battery cell by hot pressing and shaping, based on the production of the film-covered battery cell and the single-sided coated battery cell. The transfer device is used to transfer the film-covered battery cell or the single-sided coated battery cell stacked by the laminating device to the cell shaping device. The unloading mechanism is used to unload the battery cell from the cell shaping device and place it in the unloading position.

2. The fully automatic lamination machine according to claim 1, characterized in that: The transfer device includes a transfer support frame arranged on the workbench, a multi-axis mechanical shaft installed on the transfer support frame, a transfer support table at the end of the multi-axis mechanical shaft, and a transfer clamp jaw rotating on the transfer support table.

3. The fully automatic lamination machine according to claim 1, characterized in that: The unloading mechanism includes a transfer assembly for removing the battery cell from the cell shaping device, and a grabbing assembly connected to the transfer assembly for grabbing and placing the battery cell removed from the cell shaping device in the unloading position. The workbench is provided with a battery cell holder at the unloading position.

4. The fully automatic lamination machine according to claim 1, characterized in that: The laminating device is arranged on the workbench in two groups.

5. The fully automatic lamination machine according to claim 1, characterized in that: The laminating device is arranged on the workbench in two groups.

6. The fully automatic lamination machine according to claim 3, characterized in that: The transfer assembly includes an unloading plug plate for clamping the battery cell.

7. A fully automatic lamination machine according to claim 6, characterized in that: The grabbing assembly includes a grabbing linear module arranged on the workbench, a grabbing support arranged on the grabbing linear module, and a grabbing clamp jaw installed on the grabbing support. The grabbing assembly includes a grabbing linear module arranged on the workbench, a grabbing support arranged on the grabbing linear module, and a grabbing clamp jaw installed on the grabbing support.

8. The fully automatic lamination machine according to claim 1, characterized in that: The cell shaping device comprises a hot-press shaping device for hot-press shaping process operation of single-side coated cells, a rubberizing shaping device for rubberizing and fixing shaping of film-coated cells, and a feeding structure for selectively operating and transferring different cells between the hot-press shaping device and the rubberizing shaping device. The hot-press shaping device, the rubberizing shaping device and the feeding structure are separately arranged on the workbench, and multifunctional selective operation of one of the hot-press shaping device or the rubberizing shaping device is realized based on the movement of the feeding structure.

9. A fully automatic lamination machine according to any one of claims 4 or 5, characterized in that: Each of the stacker devices comprises a membrane supply mechanism for providing a separator, two feeding mechanisms, a stacking table located between the two feeding mechanisms, and a stacker mechanism for stacking the electrode sheets on the stacking table. The stand of the stacker mechanism is fixedly connected to the workbench. The two feeding mechanisms are symmetrically arranged left and right. The feeding mechanism comprises a taking and placing mechanism, two material boxes and a transfer table. The transfer table is close to the stacking table. The taking and placing mechanism is used to grab the battery electrode sheets from the two material boxes one by one and transfer and place them on the transfer table. The transfer table supplies the stacker mechanism with the battery electrode sheets placed thereon one by one after correcting the positions of the battery electrode sheets.

10. A fully automatic lamination machine according to claim 9, characterized in that: The stacker mechanism comprises a stand, a transverse sliding plate, a bracket provided with suction cups on the left and right sides, and a fourth driving member. The transverse sliding plate is slidably connected to the stand. The bracket is slidably connected to the transverse sliding plate. The stand is provided with a "∩"-shaped first limiting groove. The stacker mechanism further comprises a limiting shaft and a pushing mechanism. One end of the limiting shaft is fixedly connected to the bracket and the other end is fitted into the first limiting groove. The pushing mechanism is arranged on the stand and its pushing end is movably connected to the limiting shaft. The driving member is fixedly connected to the bracket and is used to drive the pushing mechanism to push the limiting shaft and the bracket to reciprocally slide along the first limiting groove. When the bracket moves to the left end and the right end of the first limiting groove, the right suction cup and the left suction cup are at the same position.

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